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-rw-r--r--board/cpu87/flash.c608
1 files changed, 0 insertions, 608 deletions
diff --git a/board/cpu87/flash.c b/board/cpu87/flash.c
deleted file mode 100644
index 96ba7d9..0000000
--- a/board/cpu87/flash.c
+++ /dev/null
@@ -1,608 +0,0 @@
-/*
- * (C) Copyright 2001-2005
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * Flash Routines for Intel devices
- *
- *--------------------------------------------------------------------
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <mpc8xx.h>
-#include "cpu87.h"
-
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
-
-/*-----------------------------------------------------------------------
- */
-ulong flash_int_get_size (volatile unsigned long *baseaddr,
- flash_info_t * info)
-{
- short i;
- unsigned long flashtest_h, flashtest_l;
-
- info->sector_count = info->size = 0;
- info->flash_id = FLASH_UNKNOWN;
-
- /* Write identify command sequence and test FLASH answer
- */
- baseaddr[0] = 0x00900090;
- baseaddr[1] = 0x00900090;
-
- flashtest_h = baseaddr[0]; /* manufacturer ID */
- flashtest_l = baseaddr[1];
-
- if (flashtest_h != INTEL_MANUFACT || flashtest_l != INTEL_MANUFACT)
- return (0); /* no or unknown flash */
-
- flashtest_h = baseaddr[2]; /* device ID */
- flashtest_l = baseaddr[3];
-
- if (flashtest_h != flashtest_l)
- return (0);
-
- switch (flashtest_h) {
- case INTEL_ID_28F160C3B:
- info->flash_id = FLASH_28F160C3B;
- info->sector_count = 39;
- info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
- break;
- case INTEL_ID_28F160F3B:
- info->flash_id = FLASH_28F160F3B;
- info->sector_count = 39;
- info->size = 0x00800000; /* 4 * 2 MB = 8 MB */
- break;
- case INTEL_ID_28F640C3B:
- info->flash_id = FLASH_28F640C3B;
- info->sector_count = 135;
- info->size = 0x02000000; /* 16 * 2 MB = 32 MB */
- break;
- default:
- return (0); /* no or unknown flash */
- }
-
- info->flash_id |= INTEL_MANUFACT << 16; /* set manufacturer offset */
-
- if (info->flash_id & FLASH_BTYPE) {
- volatile unsigned long *tmp = baseaddr;
-
- /* set up sector start adress table (bottom sector type)
- * AND unlock the sectors (if our chip is 160C3)
- */
- for (i = 0; i < info->sector_count; i++) {
- if (((info->flash_id & FLASH_TYPEMASK) == FLASH_28F160C3B) ||
- ((info->flash_id & FLASH_TYPEMASK) == FLASH_28F640C3B)) {
- tmp[0] = 0x00600060;
- tmp[1] = 0x00600060;
- tmp[0] = 0x00D000D0;
- tmp[1] = 0x00D000D0;
- }
- info->start[i] = (uint) tmp;
- tmp += i < 8 ? 0x2000 : 0x10000; /* pointer arith */
- }
- }
-
- memset (info->protect, 0, info->sector_count);
-
- baseaddr[0] = 0x00FF00FF;
- baseaddr[1] = 0x00FF00FF;
-
- return (info->size);
-}
-
-static ulong flash_amd_get_size (vu_char *addr, flash_info_t *info)
-{
- short i;
- uchar vendor, devid;
- ulong base = (ulong)addr;
-
- /* Write auto select command: read Manufacturer ID */
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0x90;
-
- udelay(1000);
-
- vendor = addr[0];
- devid = addr[1] & 0xff;
-
- /* only support AMD */
- if (vendor != 0x01) {
- return 0;
- }
-
- vendor &= 0xf;
- devid &= 0xff;
-
- if (devid == AMD_ID_F040B) {
- info->flash_id = vendor << 16 | devid;
- info->sector_count = 8;
- info->size = info->sector_count * 0x10000;
- }
- else if (devid == AMD_ID_F080B) {
- info->flash_id = vendor << 16 | devid;
- info->sector_count = 16;
- info->size = 4 * info->sector_count * 0x10000;
- }
- else if (devid == AMD_ID_F016D) {
- info->flash_id = vendor << 16 | devid;
- info->sector_count = 32;
- info->size = 4 * info->sector_count * 0x10000;
- }
- else {
- printf ("## Unknown Flash Type: %02x\n", devid);
- return 0;
- }
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* sector base address */
- info->start[i] = base + i * (info->size / info->sector_count);
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
- addr = (volatile unsigned char *)(info->start[i]);
- info->protect[i] = addr[2] & 1;
- }
-
- /*
- * Prevent writes to uninitialized FLASH.
- */
- if (info->flash_id != FLASH_UNKNOWN) {
- addr = (vu_char *)info->start[0];
- addr[0] = 0xF0; /* reset bank */
- }
-
- return (info->size);
-}
-
-
-/*-----------------------------------------------------------------------
- */
-unsigned long flash_init (void)
-{
- unsigned long size_b0 = 0;
- unsigned long size_b1 = 0;
- int i;
-
- /* Init: no FLASHes known
- */
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
-
- /* Disable flash protection */
- CPU86_BCR |= (CPU86_BCR_FWPT | CPU86_BCR_FWRE);
-
- /* Static FLASH Bank configuration here (only one bank) */
-
- size_b0 = flash_int_get_size ((ulong *) CONFIG_SYS_FLASH_BASE, &flash_info[0]);
- size_b1 = flash_amd_get_size ((uchar *) CONFIG_SYS_BOOTROM_BASE, &flash_info[1]);
-
- if (size_b0 > 0 || size_b1 > 0) {
-
- printf("(");
-
- if (size_b0 > 0) {
- puts ("Bank#1 - ");
- print_size (size_b0, (size_b1 > 0) ? ", " : ") ");
- }
-
- if (size_b1 > 0) {
- puts ("Bank#2 - ");
- print_size (size_b1, ") ");
- }
- }
- else {
- printf ("## No FLASH found.\n");
- return 0;
- }
- /* protect monitor and environment sectors
- */
-
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_BOOTROM_BASE
- if (size_b1) {
- /* If U-Boot is booted from ROM the CONFIG_SYS_MONITOR_BASE > CONFIG_SYS_FLASH_BASE
- * but we shouldn't protect it.
- */
-
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, &flash_info[1]
- );
- }
-#else
-#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_SYS_MONITOR_BASE,
- CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]
- );
-#endif
-#endif
-
-#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR)
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# if CONFIG_ENV_ADDR >= CONFIG_SYS_BOOTROM_BASE
- if (size_b1) {
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[1]);
- }
-# else
- flash_protect (FLAG_PROTECT_SET,
- CONFIG_ENV_ADDR,
- CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
-# endif
-#endif
-
- return (size_b0 + size_b1);
-}
-
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t * info)
-{
- int i;
-
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
-
- switch ((info->flash_id >> 16) & 0xff) {
- case 0x89:
- printf ("INTEL ");
- break;
- case 0x1:
- printf ("AMD ");
- break;
- default:
- printf ("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_28F160C3B:
- printf ("28F160C3B (16 Mbit, bottom sector)\n");
- break;
- case FLASH_28F160F3B:
- printf ("28F160F3B (16 Mbit, bottom sector)\n");
- break;
- case FLASH_28F640C3B:
- printf ("28F640C3B (64 M, bottom sector)\n");
- break;
- case AMD_ID_F040B:
- printf ("AM29F040B (4 Mbit)\n");
- break;
- default:
- printf ("Unknown Chip Type\n");
- break;
- }
-
- if (info->size < 0x100000)
- printf (" Size: %ld KB in %d Sectors\n",
- info->size >> 10, info->sector_count);
- else
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i = 0; i < info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
-}
-
-/*-----------------------------------------------------------------------
- */
-int flash_erase (flash_info_t * info, int s_first, int s_last)
-{
- vu_char *addr = (vu_char *)(info->start[0]);
- int flag, prot, sect, l_sect;
- ulong start, now, last;
-
- if ((s_first < 0) || (s_first > s_last)) {
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("- missing\n");
- } else {
- printf ("- no sectors to erase\n");
- }
- return 1;
- }
-
- prot = 0;
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect])
- prot++;
- }
-
- if (prot) {
- printf ("- Warning: %d protected sectors will not be erased!\n",
- prot);
- } else {
- printf ("\n");
- }
-
- /* Check the type of erased flash
- */
- if (info->flash_id >> 16 == 0x1) {
- /* Erase AMD flash
- */
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0x80;
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- addr = (vu_char *)(info->start[sect]);
- addr[0] = 0x30;
- l_sect = sect;
- }
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto AMD_DONE;
-
- start = get_timer (0);
- last = start;
- addr = (vu_char *)(info->start[l_sect]);
- while ((addr[0] & 0x80) != 0x80) {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
- }
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- serial_putc ('.');
- last = now;
- }
- }
-
-AMD_DONE:
- /* reset to read mode */
- addr = (volatile unsigned char *)info->start[0];
- addr[0] = 0xF0; /* reset bank */
-
- } else {
- /* Erase Intel flash
- */
-
- /* Start erase on unprotected sectors
- */
- for (sect = s_first; sect <= s_last; sect++) {
- volatile ulong *addr =
- (volatile unsigned long *) info->start[sect];
-
- start = get_timer (0);
- last = start;
- if (info->protect[sect] == 0) {
- /* Disable interrupts which might cause a timeout here
- */
- flag = disable_interrupts ();
-
- /* Erase the block
- */
- addr[0] = 0x00200020;
- addr[1] = 0x00200020;
- addr[0] = 0x00D000D0;
- addr[1] = 0x00D000D0;
-
- /* re-enable interrupts if necessary
- */
- if (flag)
- enable_interrupts ();
-
- /* wait at least 80us - let's wait 1 ms
- */
- udelay (1000);
-
- last = start;
- while ((addr[0] & 0x00800080) != 0x00800080 ||
- (addr[1] & 0x00800080) != 0x00800080) {
- if ((now = get_timer (start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout (erase suspended!)\n");
- /* Suspend erase
- */
- addr[0] = 0x00B000B0;
- addr[1] = 0x00B000B0;
- goto DONE;
- }
- /* show that we're waiting
- */
- if ((now - last) > 1000) { /* every second */
- serial_putc ('.');
- last = now;
- }
- }
- if (addr[0] & 0x00220022 || addr[1] & 0x00220022) {
- printf ("*** ERROR: erase failed!\n");
- goto DONE;
- }
- }
- /* Clear status register and reset to read mode
- */
- addr[0] = 0x00500050;
- addr[1] = 0x00500050;
- addr[0] = 0x00FF00FF;
- addr[1] = 0x00FF00FF;
- }
- }
-
- printf (" done\n");
-
-DONE:
- return 0;
-}
-
-static int write_word (flash_info_t *, volatile unsigned long *, ulong);
-static int write_byte (flash_info_t *info, ulong dest, uchar data);
-
-/*-----------------------------------------------------------------------
- * Copy memory to flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
-{
- ulong v;
- int i, l, rc, cc = cnt, res = 0;
-
- if (info->flash_id >> 16 == 0x1) {
-
- /* Write to AMD 8-bit flash
- */
- while (cnt > 0) {
- if ((rc = write_byte(info, addr, *src)) != 0) {
- return (rc);
- }
- addr++;
- src++;
- cnt--;
- }
-
- return (0);
- } else {
-
- /* Write to Intel 64-bit flash
- */
- for (v=0; cc > 0; addr += 4, cc -= 4 - l) {
- l = (addr & 3);
- addr &= ~3;
-
- for (i = 0; i < 4; i++) {
- v = (v << 8) + (i < l || i - l >= cc ?
- *((unsigned char *) addr + i) : *src++);
- }
-
- if ((res = write_word (info, (volatile unsigned long *) addr, v)) != 0)
- break;
- }
- }
-
- return (res);
-}
-
-/*-----------------------------------------------------------------------
- * Write a word to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_word (flash_info_t * info, volatile unsigned long *addr,
- ulong data)
-{
- int flag, res = 0;
- ulong start;
-
- /* Check if Flash is (sufficiently) erased
- */
- if ((*addr & data) != data)
- return (2);
-
- /* Disable interrupts which might cause a timeout here
- */
- flag = disable_interrupts ();
-
- *addr = 0x00400040;
- *addr = data;
-
- /* re-enable interrupts if necessary
- */
- if (flag)
- enable_interrupts ();
-
- start = get_timer (0);
- while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer (start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- /* Suspend program
- */
- *addr = 0x00B000B0;
- res = 1;
- goto OUT;
- }
- }
-
- if (*addr & 0x00220022) {
- printf ("*** ERROR: program failed!\n");
- res = 1;
- }
-
-OUT:
- /* Clear status register and reset to read mode
- */
- *addr = 0x00500050;
- *addr = 0x00FF00FF;
-
- return (res);
-}
-
-/*-----------------------------------------------------------------------
- * Write a byte to Flash, returns:
- * 0 - OK
- * 1 - write timeout
- * 2 - Flash not erased
- */
-static int write_byte (flash_info_t *info, ulong dest, uchar data)
-{
- vu_char *addr = (vu_char *)(info->start[0]);
- ulong start;
- int flag;
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_char *)dest) & data) != data) {
- return (2);
- }
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0xA0;
-
- *((vu_char *)dest) = data;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while ((*((vu_char *)dest) & 0x80) != (data & 0x80)) {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
- }
- }
- return (0);
-}
-
-/*-----------------------------------------------------------------------
- */
generated by cgit v1.1 at 2024-12-24 04:34:01 +0000